199902310000

素因数分解:

$2^4\times 5^4\times {\mathrm{257}}^1\times {\mathrm{77783}}^1$

素因数の和:78068

約数の個数: 100

約数和(自身を含む): 485872933392

約数和(自身を除く): 285970623392

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 257, 400, 500, 514, 625, 1000, 1028, 1250, 1285, 2000, 2056, 2500, 2570, 4112, 5000, 5140, 6425, 10000, 10280, 12850, 20560, 25700, 32125, 51400, 64250, 77783, 102800, 128500, 155566, 160625, 257000, 311132, 321250, 388915, 514000, 622264, 642500, 777830, 1244528, 1285000, 1555660, 1944575, 2570000, 3111320, 3889150, 6222640, 7778300, 9722875, 15556600, 19445750, 19990231, 31113200, 38891500, 39980462, 48614375, 77783000, 79960924, 97228750, 99951155, 155566000, 159921848, 194457500, 199902310, 319843696, 388915000, 399804620, 499755775, 777830000, 799609240, 999511550, 1599218480, 1999023100, 2498778875, 3998046200, 4997557750, 7996092400, 9995115500, 12493894375, 19990231000, 24987788750, 39980462000, 49975577500, 99951155000, 199902310000]

約数ペア:

[(1, 199902310000), (2, 99951155000), (4, 49975577500), (5, 39980462000), (8, 24987788750), (10, 19990231000), (16, 12493894375), (20, 9995115500), (25, 7996092400), (40, 4997557750), (50, 3998046200), (80, 2498778875), (100, 1999023100), (125, 1599218480), (200, 999511550), (250, 799609240), (257, 777830000), (400, 499755775), (500, 399804620), (514, 388915000), (625, 319843696), (1000, 199902310), (1028, 194457500), (1250, 159921848), (1285, 155566000), (2000, 99951155), (2056, 97228750), (2500, 79960924), (2570, 77783000), (4112, 48614375), (5000, 39980462), (5140, 38891500), (6425, 31113200), (10000, 19990231), (10280, 19445750), (12850, 15556600), (20560, 9722875), (25700, 7778300), (32125, 6222640), (51400, 3889150), (64250, 3111320), (77783, 2570000), (102800, 1944575), (128500, 1555660), (155566, 1285000), (160625, 1244528), (257000, 777830), (311132, 642500), (321250, 622264), (388915, 514000)]